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The difference between vc6 x86 and vc9 x86 in PHP and the meaning of non-thread safe

Source: Internet
Author: User
Tags php download vc9
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PHP version 5.3.0 is now available, but there are several different versions to download. That is, vc6 x86 and vc9 x86.
First, let me answer:

What is vc6?
Vc6 is compiled by the legacy Visual Studio 6 compiler.

What is vc9?
Vc9 is the Visual Studio 2008 compiler, which is compiled by Microsoft vs editor.
So how do we choose which PHP version to download?
If you are using Apache + PHP in windows, select vc6;
If you are using IIS + PHP in windows, select vc9;

What is non thread safe?
Non-thread safe is non-thread security;

What is thread safe?
Thread safe is thread security;
We do not recommend that you use non-thread safe in the production environment. Therefore, we use PHP of thread safe.
PHP download page: http://windows.php.net/download/

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